TESTUDO ELEPHANTINA. 
25 
The female (spec, e) does not differ much from the male as regards the form of the cara- 
pace; but, being evidently a much younger specimen, the strise are deeper, more numerous, 
and more distinct. The nuchal plate is, exceptionally, absent. The sternum is nearly flat, 
with a distinct notch in front and behind. Tail short, with a terminal claw. Colour 
as black as in the male. 
The very young specimen, which is only 14 inches long, has the scutes very neatly 
sculptured, deep concentric strise occupying nearly the whole of the scutes, with the 
exception of the small areolar spaces. The carapace itself is high, of a regularly oval 
shape. Sternum scarcely notched in front and behind. Colour less intensely black 
than in the preceding specimens. 
The measurements of these specimens are as follows : — 
Length of carapace. 
In str.line. Over curve. 
m. 
m. 
Ad. 
c?.... 
.. 49 
641 
Ad. 
.. 39 
52 
Ad. 
•• 271 
36 
Yg. 
.. 14 
18i 
Width of carapace. Depth of 
In str.line. Over curve, carapace, 
in. in. in. 
361 65 26 
26 54 24 
22 37 131 
8 18 81 
Sternum. Caudal plate. 
Length. Width. Length. Width. 
m. 
m. 
m. 
m. 
38 
25 
4 
8i 
32 
23 
9 
231 
17i 
31 
121 
8i 
H 
Variety j3. 
Of this variety I have only one incomplete example before me (if, indeed, the very 
young specimen just described should not be more properly referred to it) — a large 
carapace 40 inches long, the sternum of which is lost. It differs from the preceding 
variety in being horn-coloured, and in having the carapace conspicuously narrower and 
somewhat less elevated. The protuberances of the costal plates are less pronounced ; 
and the upper profile of the last vertebral and caudal sweeps downwards in an unin- 
terrupted gentle curve. The broad areolar portions and the striations of the scutes are 
exactly as in the preceding variety ; nuchal plate of moderate size, as long as broad. 
Length of carapace. Width of carapace. Depth of Caudal plate. 
In str. line. Over curve. In str. line. Over curve. carapace. Length. Width, 
in. in. in. in. in. in. in. 
Ad. J 40 501 231 49 igi 4 9 
Variety y. 
The adult male has the carapace broad and depressed, nearly equally wide in front 
and behind ; its upper surface is remarkably flat, and the anterior slope considerably 
steeper than the posterior ; in fact the median profile of the first vertebral scute between 
its hind margin and the nuchal plate is remarkably concave. The anterior free margin 
of the carapace is somewhat turned outwards, but not reverted, and without any notches, 
whilst the posterior shows a reversion with shallow notches between the marginal scutes. 
E 
